Im not saying that doen't wok, What i am saying is that the amount of bullshit you have to deal with is so much annoying compared to the other builds... I didn't even mentioned the fact that enemies can hit you while you are fucking other guy, that will disengage you, also fucking is soo much costly, you loose more stamina them actually fighting... its just awful.
Succubus Good BUILD. You only need Weakness 50+ and enough pumping. You Cannibalize almost everyone, Problems: Animals, Women, Bosses and Undead. All This Is Solvable, even without special Races. Succubus-Cannibal or Succubus-Priestess have a lot of advantages over other classes. I'm not even mentioning that the succubus is one of the classes that retains a significant part of its combat effectiveness in slavery. And as a bonus - you are a human truck. You can carry a mountain of goodies with you.